Motor vehicle ventilating system



v Dec. 30, 1941. A T,' BRQWNE 2,268,502

MOTORVEHICLE VENTILATING SYSTEM INVENTOR Dec. 30, 1941. A T, BROWNE 2,268,502

MOTOR VEHICLE VENTILATING SYSTEM Filed June 15)1957 4 sheets-sheet 2 INVENTOR 70 ATTORNEY Dec. 3o, 1941. A. T. BROWNE Y 2,268,502

MOTOR VEHICLE VENTILATING SYSTEM Filed June 15, 1937 4 Sheets-Sheet 3 INVENTOR //ndrgy Z'Browlze w LM ATTORNEY Dec. 30, 1941.

A. T. BRowNE MOTOR VEHICLE VENTILATING SYSTEM Filed June 15, 1957 4 sheetssheet 4 INVENTOR /mngg/ rozwze /ma-ra ATTORNEY Patented `Dec. 30, 1941 UNITED STATES PATENT oFFlcE Andrew T. Browne, Lansdowne, Pa., assigner to The J. G. Brill Company, Philadelphia, Pa., a corporation of Pennsylvania Application June 15, 1937, Serial No. 148,249

(Cl. 98-'10l 7Claims.

This invention relates to Ventilating systems in general and in particular to Ventilating systems for motor vehicles.

Ventilating systems as previously constructed for motor vehicles have utilized exhaust ventilators in the roof area, which rely for their operation either upon the movement of the vehicle or the natural convection currents in the air. In some cases positive circulation of air within the vehicle was utilized but in all these cases an independent device was provided to circulate and discharge the air. It is an object, therefore, of this invention to provide an improved Ventilating system of the positive type in which the air circulating means is directly connected' to the Vehicle propelling means.

A further object of the invention is the provision of a motor vehicle in which the traction motors are cooled by means of air withdrawn from the roof zone interior of the vehicle. y l

A still further object of the invention is th provision of a motor vehicle in which fresh tempered air is supplied to the body through ducts and exhausted from the body through ducts which include as a part thereof the traction motors.

be apparent to persons skilled in the art from a study of the following description and accompanying drawings, in which:

Fig. 2 is a plan View of the improved vehiclef y showing the air flow through' the Vehicle;

Fis. 3 is a sectional view substantially onehalf the Vehicle and taken on line 3--3 of Fig. 4;

Fig. 4 is a 'sectional View taken substantially'at the center line of the vehicle and showing the construction and air flow at the rear portion of the Vehicle;

Fig. 5 is a sectional View of one of the rear Vertical air ducts and taken substantially on line I-l of Fig. 4:

Fig. 6 is a sectional View taken on line 6 8 oi Fig. 1 and showing the fresh air inlet, and

Fig. '7 is a sectional View taken substantially on line 1-1 of Fig. 6.

Referring now to the drawings in detail, it will These and other objects of the invention will be seen that in general the vehicle is of conventional design having wheels W supporting the vehicle and adapted to be driven by any suitable means, such as traction motor M, which in the hang. The vehicle body is constructed in any desired manner and consists of roof R, sides S and floor Fupon which the seats T for the passengers and operator are mounted. In the vehicle illustrated the sides and ends are provided with windows V mounted between the side posts P. Certain of these side posts are enlarged to provide substantially box section piers 2 formed by the Vehicle sides, lining 4 and vertical U-section posts I (Figs. l, 6 and '7). Each of these hollow or box section piers is capped at the top by the side plate l and at the bottom by curved sealing plate I0 which will direct the air inwardly toward the vehicle interior through louvred openings formed in lower wall plate I2. This lower wall plate is spaced inwardly from thevehicle interior trim to which it is connected by suitable metal plates Il, thus forming a box in which electric or other heaters I6 may be mounted. Air is permitted to enter these hollow or box like Piers through louvres I8 formed in the outer side sheet adjacent the upper end ofthe pier, thus permitting air to iiow into and down through the pier and through the heater into the vehicle interior adjacent the iloor zone.

In order to exhaust air from the Vehicle interior a pair of ducts are provided located lin the ceiling adjacenteach side of. the vehicle. ,Each of these ducts is formed on the lower sldeby ceiling plates 22, on the outer sideby vertically extending plate 24 and on the inner side by zvertical plate 26 which is '.provided, at least adjacent its forward portion, with slotted openings 2l permitting entrance of air'into the duct from the forward end of the vehicle. The rear ends of these ducts connect in a transversely extending top duct 30 formed by the ceiling plate and by suitable dividing plates 32 and 33,' the latter of which is provided with slots 3l permitting the entrance of air from the rear portion of the vehicle directly into the transverse duct (Figs. 1 to 4) The end portions of this transverse top duct merge into vertically extending ducts 36 located in each rear corner of the Vehicle and formed by the vehicle side plates and interior rear finish plates 38. The edges of these vertical ducts are sealed by end posts 40 and curved post and sealing block assembly 42 which conforms substantially to the curve of the rear window opening and trim M as clearly shown in Figs. 1 and 5. Since this duct is curved and liable to receive considerable thrust bracing plates 46 have been provided which in the instance shown are merely present instance is located beneath the rear overl short spacing clips. The lower ends of these lower duct are provided with louvred openings I adapted to be controlled by manually operated slide 6I (Fig. 3) A portion of the car floor `which seals this lower duct has been removed as at Il and this opening is surrounded by an outlet boot or chamber 62 suitably secured to the iloor at its upper portion and formed with an outlet M adapted to be secured to the motor casing Il. 'I'his motor casing completely houses the motor as well as the motor cooling fan lland has one end 1l open to the atmosphere. The motor cooling fan is as in most cases mounted on the drive shaft l2 by means of which the .vehicle will be driven. It is. of course, obvious that any form of prime mover, such as an internal combustion engine, could be used, but for convenience the electric motor has been indicated.

'I'he operation of the system is as follows: During such times as the traction motor or prime mover is running the motor cooling fan il will, oi' course, be rotated forcing air out of opening Il to the atmosphere. This fan movement will cause a partial evacuation of the motor casing and transverse lower duct, thus drawing air into the vertical ducts 3l through the transverse upper duct and longitudinal top ducts 2l. The removal of air from the roo! zone through these latter ducts will cause a partial vacuum to exist within the vehicle causing fresh air to enter through the hollow piers 2. This fresh air will be drawn from an area remote from the roadbed. pass downwardly through the piers and inwardly through the heaters to the floor zone of the vehicle, after which it will rise tothe top of the vehicle carrying with it smoke and other foreign matter for withdrawal by the ceiling ducts. It isthusseenthatfreshairwillbesuppliedtothe floor zone of the car and withdrawn from the vehicle interior adjacent the ceiling sone and discharged to the atmosphere beneath the vehicle after having passed through and cooled the traction motor. Such an arrangement, of course. is very economical since a single means is used both for cooling the motor and for ventilating the vehicle. Under certain conditions, such as in the wintertimewhenitmaybedesiredtolirnitthe amount of incoming fresh air, then the louvre controlled slide Il will be adjusted permizing acertainamountoffreshairtoenterdirectly into the transverse lower duct, thus supplying a substantially constant volume of air to the traction motor. By proper adJustment of the slide Il any desired degree of ventilation o! thevehicle interior may be obtained without in any way effecting the volume of air nowing through the traction motor for cooling purposes since by admittingairat llthepressurewillberaisod in duct and the quantity of air flowing through from the vehicle interior will be portionately reduced. In other words, since fan can only handle a certain volume o! air. isobviousthat ifapartof thisairissupplied directlytromtheexteriorofthevehicletbsnthe lsystexnnotonlyisthevehifclethoroughlivetitilated but the traction motor is supplied with air which will be free from grit and'tree moisture which would damage the motor, thus the system obviates the necessity o! providing special protection as is customary for the motor. It will also be apparent that by controlling the slide Il the rate of vehicle ventilation may be controlled without requiring any change in the speed ot the motor driving the fan. In other words, the ventilation may be controlled independently oi the motor.

While the invention has been described more or less in detail, it is obvious that various modications and rearrangements may be made and all such modifications and rearrangements are contemplated as'fall within the scope of the following claims.

v What is claimed is:

1. In a Ventilating system for motor propelled vehicles the combination o! a propelling motor for the vehicle mounted beneath the floor thereof, a casing housing the motor and open to the atmosphere, a transverselyextending seat located adjacent one end of the vehicle. a boxlike duct located beneath the seat and conto the ends of the box-like duct and located in the adjacent corners of the vehicle, a conduit extendingtransversely across the ceiling and connecting the vertical ducts together and open to the vehicle interior adjacent the ceiling sone at one end of the vehicle, and additional conduits connected to said first named conduit and open to the vehicle interior adJacent the other end of the vehicle, a i'an located within the casing. said fan drawing vitiated air through the conduits and ducts from the ceiling sone and over the motor thereby ventilating the vehicle and cooling the propelling motor.

2. In a Ventilating system for motor propelled vehicles the combination of a propelling motor for the vehicle mounted beneath the door thereof, a casing housing the motor and open to the open to the vehicle interior adjacent the other' endof the vehicle.a fan located within thecasing. said tan drawing vitiated air through the conduits and ducts from the ceiling sone and over the motor thereby ventilating the vehicle andeoolingthepxwellingmotonandfreahair conduitsmpliyingtreahcleanalrfromadjacexittheroofaometotbevehicleinterioradja-y centthefioortbereotandmbstantiallyatthe' transversecenter thereof.

8.In a ventilating Ustem for'self-propelled motor vehicles the combination of a propelling motorio:-t.hevehicle.acasingsurroundingtlle` motor, conduits for supplying clean fresh air'tothevehicleinterior substantiallyatthetl'lllsA verse center thereof, additional conduits for withdrawingthe-vitiatedairfromthevehicleinteriorattheendsthereoi'.aebamberconnectmg aus additional condmu and the cams. meansadjacentsaidmotor for causing movernentotairthrollshtbecouduitsandcasing,l

thereby ventilating the vehicle and the propelmeescoe ling motor, and a damper in said chamber between the vltiated air conduit and the casing to intercept the flow in the vitieted. air conduitswhereby the vehicle ventilation is regulated.

4. In e, Ventilating system for motor propelled vehicles the combination of a propelling motor or the vehicle mounted beneath the door therea of, a casing housing the motor and onen to the atmosphere, a seat mounted on the floor oi the vehicle, c box-like duct located beneath the Beet and connected to the casing, conduits connect ing the box-like duct with ends of the' vehicle interior adjacent the ceiling zone, a lan located within the casing, said lan drawing vitiated Stir through the conduits from the ends o? tine cella lng zone and over the motor whereby7 t'ne inf terlor of the vehicle is ventilated and the pro peiling motor cooled, end controllable means for admitting fresh air to the bon-like duct ivlierecl7 the rate or vehicle ventiletion may be controlled without eiectlng the cooling of the motor.

5. a Ventilating system for vehicles tlie coniu binetlon of a bloweimotor mounted eeneetn the :door o the vehicle, a casing noticing the motor and having one end open to the etnicea onere, e transversely extending seat located ad@ jacent one end. oi the vehicle, e bon-like dnct located beneath the seat end connected to seid casing, vertical ducts connected to tne ends ci seid box-like duct and located in the ediacent corners of the vehicle, a conduit extending trans versely across the ceiling and connectingl the vertical ducts together and being open to the vehicle interior adjacent the ceiling zone at one end oi the vehicle, and additional conduits con@ nected to said rst named conduit and open to the vehicle interior adjacent the other end tliere= of, e blower located within the casing end driven by seid motor, said blower drawing vltiatecl ell through the conduits and ducts from the ceiling zone and forcing the same out of the canine7 beneath the vehicle thereby Ventilating the vehicle interior.

6. In a Ventilating system for vehicles the coin= bination of a blower motor mounted beneatl'i the door o the vehicle. a casing housing the motor end lieviti@ one end open to the etmos chere, e transversely extending seat located adiecent one end of the vehicle, a box-like duct located beneath the seat and connected to said cocinea vertical ducts connected to the ends of seid iconelilse duct and located in the adjacent corners ot the vehicle, e conduit extending transvcrselr ecrosc the ceiling and connecting the verticel ducts together and being open to the vehicle interior adjacent the ceiling conc at the one end oi the vehicle, end edditionel conduits connected to .seid `first named conduit and open to tne vehicle interior adjacent the other end therfeol, lolovver located within the cosine; and driven oy seid motor, said blower drawing vitieted cir through the conduits and ducts from tine ceiling cone end forcing the saine ont oi the cocine time vehicle thereby ventilatlng the vehicle interior, end fresh nir conduits supplvlng clenn, tresli air from adjacent the roof zone to the velilcle interior adjacent the door thereof end snnstentiellv et the transverse cen= ter of tice vehicle whereby the vehicle is ventilated by flowing from the center toward eitlier end tlieieoil.

l'. in e ventilation system for vehicles the combinetlon ci? e blower mounted beneath the door thereof, a cesing housing the blower and open Ato the atmosphere a seat mounted on the floor oi tite venicle, eclecent the blower, a box-like duct located benectli the seat end connected to said ceslne conduits connecting the box-like duct with tile ends of the vehicle interior adjacent tit-ie ceiling cone, e motor located within the cosine end connected to said blower to drive tice scid lolovver drawing vitiated air throne-in the conduite from the ends of the cellE in@ edite whereby tlie interior of the vehicle is ventlllted, end controllable Ineens for admitting iresii cir directly to the box-like duct whereby the rete oi vehicle ventilation may 'ce controlled independently of the blower motor.

ANDREW T. BROWNE. 

